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3206 Uppsatser om Perioperative period - Sida 28 av 214
Biogaspotential vid samrötningav mikroalger och blandslam från Västerås kommunala reningsverk
Because of the increasing trends in energy consumption and increased environmental awareness, greater focus has been placed on improvement and development of renewable energy sources. An already proven and accepted method is biogas production from anaerobic digestion at municipal wastewater treatment plants.In the waste water treatment process solid material and dissolved pollutants are separated from the water, forming a sludge. The sludge is separated from the process and stabilized during anaerobic digestion or aerobic aeration. Most often, mesophilic anaerobic digestion is used. Because of degradation by microorganisms, biogas with a high content of methane is formed during the digestion.
Samband mellan högt hull innan könsmognad och mjölkkors förmåga att producera mjölk
Syftet med litteraturstudien var att utreda vilka kunskaper som finns rörande sambandet mellan högt hull hos kvigor innan könsmognad, och deras senare mjölkavkastning i första laktationen. Ekonomiskt sett så är uppfödningsperioden för kvigor en stor kostnad för mjölkföretaget och stora finansiella förbättringar skulle kunna göras på området. Stallplats och omvårdnad och kostnader för kvigan, foder är dock den största utgiften och står för 60 % av totala kostnaden för kviguppfödning. Genom en sänkning av ålder för könsmognad skulle även inkalvningsåldern kunna sänkas och föra med sig en kortare period som kvigan inte är produktiv. Könsmognadens start är sammankopplad med kroppsvikt och hull, inte ålder, så genom att höja utfodringsnivån kan inkalvningsåldern sänkas.
The effect of rapeseed oil and palm oil supplement and milking frequency on milk yield and milk fat quality
Milk fat is an important feature in many different milk products and other foodstuffs and it is often crucial for the dairy plants that the milk fat is stable for different manufacturing processes. Lipolysis is the enzymatic degradation of fat and is the one of the causes for an elevated amount of free fatty acids (FFA) in milk. Further, the change in fatty acid (FA) composition in milk can affect the stability of the product and also the manufacturing process. Both internal and external factors, at farm level or at the dairy plants can affect both FA composition and content of FFA. Milking frequency (MF=number of milkings per cow and day) and the composition of feed are two examples of factors generally performed at farm level.
The objective of the present study was to evaluate how FA composition of milk and amount of FFA are influenced by two different ingredients supplemented to concentrate.
Klimatfaktorers inverkan på granbarkborrens svärmningsintensitet i Medelpad
The spruce bark beetle (Ips typographhus) is one of the 25 000 species of insects in Sweden, an insect of great economic importance because it can alone terminate forest of high value. During the past decade, insights of climate change received with increasing attention. If the future brings a milder climate in the north and therefore a longer growing season, one would think that it would only affect the forestry to the better? Yet in recent time, outbreaks after storm felling seems to occur more frequently. The Spruce bark beetle ruins millions of cubic meter of Norway spruce (Picea abies) in Sweden alone, with more frequent storm felling and a larger amount of wind thrown threes in the forests there will also be room for an advancing reproduction.
Revisionsprocessen mellan Ungdomsstyrelsen och revisorer
The aim of this thesis is to expand the understanding of 16th century Flemish art by approaching paintings by artists Pieter Aertsen (1508-1575), Joachim Beuckelaer (1533-1574) and Pieter Bruegel (c. 1525-1569) from a different perspective. This is done by extending the discourse of art history, into a discourse of literary history and primarily 16th century novels by authors such as François Rabelais and Miguel de Cervantes. The paintings are studied in relation to these 16th century novels, by comparison and as a testament of this specific time period. A widening contextualization is also constructed in which a connection to the expression of the carnivals ambivalent form, as well as the notion of lower classes is explored.
I politik och praktik : En studie av kulturpolitikens inverkan på två kulturbärandeorganisationers retorik
Author: Niklas JohanssonDirector: Olle DuhlinTitle: In policy and practice ? a study of how the cultural policy have effected the language of two cultural institutions.Background: The swedish cultural policy?s raison d?être is to safeguard all the inhabitants right to experience culture. Since 1997 the development in the field has resulted in an economisation and commersialisation were the culture more commonly is looked upon as a mean of reaching a higher rate of employment or financial growth. The concept of cultural planning and new public management are today part of the cultural pollicy debate which in its turn has effected the goals and ways to evaluate fulfillment.Purpose: The purpose of this study is to show how the cultural policy in the swedish regions effect the language in the annual reports of the cultural institutions and how these documents have developed since 1997. This to further the knowledge of ho wchanges in the cultural policy effects the comunication of the cultural organisations.Method: This is a qulaitative study conducted in a inductivly.
Att våga tro på elevers förmågor : Lärares erfrenheter av att arbeta med elevinflytande i grundsärskolan
This study analyzes 66 Swedish actively managed mutual funds investing in the Swedish stock market during the period 2005-2014. The purpose is through pooled data regressions analyze the relationship between both the mutual fund?s annual fee and risk-adjusted return to the fund?s characteristics. The characteristics of the study are the size of the fund's assets, age, if the fund is bank managed or not, Tracking Error, and standard deviation of return.By using the performance measures of CAPM, Fama and French 3-factor model, and Carhart?s 4-factor model monthly risk-adjusted returns are created for all funds over the period.
Minkvalpars beteende i större berikade burar vid olika gruppstorlek :
Farmed mink often perform stereotypic behaviours which is considered to be a sign of reduced welfare. Previous studies have shown that enriched cages can reduce the frequency of performed stereotypies. Most studies on mink in Sweden have been done on adults. The aim of this study was to investigate if larger enriched cages with two or four mink kits reduce stereotypies in mink kits during their growth period in comparison to traditional cages.
In the present study the behaviours of mink kits that were kept in four different treatments at a private mink farm were recorded. Traditional cages with two mink kits were used as a reference and the other treatments consisted of larger cages with shelves with two kits, larger cages with shelves and a plastic cylinder with two kits, and larger cages with shelves with four kits.
Spårelement i Sveriges jordbruksmark : flöden, trender och fältbalanser
Field balances based on supply and removal of trace elements from the topsoil have been calculatedfor farms specialized in crop, dairy and pig production in Sweden. Today's field balances have beencompared with the field balances of 1990 in order to examine if, and then how, the situation haschanged. Studied trace elements are arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu),mercury (Hg), manganese (Mn), nickel (Ni), lead (Pb) and zinc (Zn).The balance calculations show that the stores of Cu and Zn are depleted with an average rate of -15% and -6 % over a 100-years period on crop farms when only commercial fertilizers are being used.The concentrations of Hg and Pb tend to increase in the topsoil on crop farms with more than 3 % forHg and with 2 % for Pb in 100 years. There is today balance between supply and removal of the traceelements As, Cd, Cr, Mn and Ni. In the south of Sweden, on crop farms with sugar beets in the croprotation, one can see a decrease in the concentration of Cd in the top soil by -6 % over a period of100 years.
Programmeringsstruktur med dyslektiskt tänkande
During the period of this project I have programed a web site in php4, and also built the database in MySQL. The purpose with the projekt is to create a common web site for the various activities in the different churches located in the area of Örnsköldsvik. In my project I have chosen to try to find a structure of programming that fits my needs as a dyslexic. In the essay you can find a more thorough description of my procedure and the structure that I have chosen to use..
Folkpartiets syn på svensk säkerhets- och utrikespolitik 1956-1974 : En jämförande analys av Folkpartiets syn på svensk säkerhets- och utrikespolitiska frågor i förhållande till regeringen
The socialdemokrats? long possession of government power from the 1930?s to 1976 gave them the opportunity to put their stamp on Swedish domestic and foreign affairs in the shadow of the cold war. The government policy in security and foreign affairs, therefore, was that of the socialdemokratic party. The stance of the government has been researched, but it lacks focus on the opposition. The purpose of this paper is to analyse Folkpartiet´s view of security and foreign affairs in comparison with government policy.
Kärnvapennedrustning i USA och Sovjetunionen : Åren 1960-2002
AbstractIII-essay in political science by Christoffer Harnell, autumn -08. Supervisor: Malin Stegman-McCallion. ?Nuclear Disarmament - USA and the Soviet Union 1960-2002? This essay is about USA and the former Soviet Union and their nuclear disarmament. The purpose is to explain why and when the two states begun their nuclear disarmament, as well as what caused the start of the process.
Schartau och efterföljare - Personen och traditionen
Henric Schartau was the prominent figure in a Christian revivalist movement thatspread mainly in south west Sweden during the 19th century. Priesthood followers in thetradition, commonly named Schartauans, often preached from his drafts, and were generallyvery loyal to the state church. Schartau and his followers placed a strong emphasis onministry and correct biblical teaching. The movement had a great impact on the diocese ofGothenburg for a protracted time period..
Har respekten försvunnit ur klassrummet? : En kvalitativ studie om elevers attityder gentemot lärare - sett ur ett lärarperspektiv
Det huvudsakliga syftet med studien var att med hjälp av ett hermeneutiskt förhållningssätt söka en förståelse av lärares syn på interaktionen elev- lärare. Fokus har vilat på attitydförändringar hos eleverna, under en 40 års period. Studien har lutat sig mot det sociokulturella och socialpsykologiska perspektivet och utgörs av en kvalitativ metod, där fem lärare har blivit intervjuade i en mellanstor stad i Sverige. Den teoretiska bakgrunden inleds med en definition av begreppet interaktion och belyser tidigare forskning kring interaktionen elev- lärare. Det ges även en överblick av begreppet attityder och normbrytande beteende i relation till påverkansfaktorer i vår omgivning. Bakgrunden behandlar likaså de större samhällsförändringar som skett sedan 1970-talet i form av postmodernitetens framfart och kommunaliseringen av skolan på 1980-talet.
Stress test methods : a potential approach to hurry up shelf-life tests on oat products
The aim of this Master?s thesis was to find out more about the delimiting quality- and shelf-life parameters over time for liquid oat-based products. According to that, to present applicable subjective and objective shelf-life test approaches at accelerated conditions. The study aimed to gain a deeper knowledge concerning the general and accepted way of performing accelerated storage tests. This study focused especially on products, which suffer from quality failure caused by oxidation, such as liquid oat-based products.